Solved

Exception after setting jdbc session management

Posted on 2016-09-28
2
82 Views
Last Modified: 2016-10-14
HI,
Following the link http://www.eclipse.org/jetty/documentation/9.3.x/session-clustering-jdbc.html
I setup the session Id Manager and SessionManager in my embedded jetty web application.
But i am getting the following exception when i load the page :
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.handler.ContextHandler scope null||/favicon.ico @ o.e.j.w.WebAppContext@34ce8af7{/,file:///Users/robinsuri/Checkout/flock-notes/target/classes/webapp/,AVAILABLE} 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.handler.ContextHandler scope null||/favicon.ico @ o.e.j.w.WebAppContext@34ce8af7{/,file:///Users/robinsuri/Checkout/flock-notes/target/classes/webapp/,AVAILABLE} 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.handler.ContextHandler context=||/favicon.ico @ o.e.j.w.WebAppContext@34ce8af7{/,file:///Users/robinsuri/Checkout/flock-notes/target/classes/webapp/,AVAILABLE} 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.handler.ContextHandler context=||/favicon.ico @ o.e.j.w.WebAppContext@34ce8af7{/,file:///Users/robinsuri/Checkout/flock-notes/target/classes/webapp/,AVAILABLE} 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.session Got Session ID stwe2x751x959689f5pnbgw3 from cookie 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.session Got Session ID stwe2x751x959689f5pnbgw3 from cookie 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.session.JDBCSessionManager getSession(stwe2x751x959689f5pnbgw3): in session map,  hashcode=1332006132 now=1475054004732 lastSaved=1475053997554 interval=60000 lastNode=null thisNode=null difference=7178 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.session.JDBCSessionManager getSession(stwe2x751x959689f5pnbgw3): in session map,  hashcode=1332006132 now=1475054004732 lastSaved=1475053997554 interval=60000 lastNode=null thisNode=null difference=7178 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.session.JDBCSessionManager getSession(stwe2x751x959689f5pnbgw3): session in session map 
2016-09-28 14:43:24 DEBUG qtp248609774-19 org.eclipse.jetty.server.session.JDBCSessionManager getSession(stwe2x751x959689f5pnbgw3): session in session map 
2016-09-28 14:43:24 WARN qtp248609774-19 org.eclipse.jetty.server.HttpChannel //localhost:8080/favicon.ico 
java.lang.NullPointerException
	at org.eclipse.jetty.server.session.JDBCSessionManager.getSession(JDBCSessionManager.java:528)
	at org.eclipse.jetty.server.session.JDBCSessionManager.getSession(JDBCSessionManager.java:75)
	at org.eclipse.jetty.server.session.AbstractSessionManager.getHttpSession(AbstractSessionManager.java:323)
	at org.eclipse.jetty.server.session.SessionHandler.checkRequestedSessionId(SessionHandler.java:275)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:151)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1090)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
	at org.eclipse.jetty.server.Server.handle(Server.java:517)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:306)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:261)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
	at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)
	at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
	at java.lang.Thread.run(Thread.java:745)

Open in new window

What could be the reason for it. Following is the code i have added in my embedded jetty to handle jdbc session management :
server = new Server();
        JDBCSessionIdManager idMgr = new JDBCSessionIdManager(server);
        BasicDataSource dataSource = new BasicDataSource();
        dataSource.setUrl(props.getProperty("note.jdbc.url"));
        dataSource.setUsername(props.getProperty("note.jdbc.username"));
        dataSource.setPassword(props.getProperty("note.jdbc.password"));
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        idMgr.setDatasource(dataSource);
        server.setSessionIdManager(idMgr);




WebAppContext context = new WebAppContext();
        JDBCSessionManager jdbcMgr = new JDBCSessionManager();
        jdbcMgr.setSessionIdManager(server.getSessionIdManager());
        SessionHandler sessionHandler = new SessionHandler(jdbcMgr);
        context.setSessionHandler(sessionHandler);

Open in new window


Rest code for setting up my embedded jetty server is same. Application was running fine previously but now the server does start but then there is this exception.
Also one thing which i notice from the article which i am missing is :
When using the jetty distribution, to enable jdbc session persistence, you will first need to enable the jdbc-session module for your base using the --add-to-start or --add-to-startd argument to the start.jar.
But i am starting my jetty from intellij idea from a main function... dont know how to fit these there

Thanks
0
Comment
Question by:Rohit Bajaj
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 500 total points
ID: 41823027
But i am starting my jetty from intellij idea from a main function
How? There's almost certainly a way of either passing the correct parameters or providing init properties
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 41843234
:)
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Unhandled exception type Exception 18 52
java imports not found 4 49
Tagging and Merging on Branch 1 40
Github api to fetch the number of collaborators in a git repo 1 28
Java contains several comparison operators (e.g., <, <=, >, >=, ==, !=) that allow you to compare primitive values. However, these operators cannot be used to compare the contents of objects. Interface Comparable is used to allow objects of a cl…
Are you developing a Java application and want to create Excel Spreadsheets? You have come to the right place, this article will describe how you can create Excel Spreadsheets from a Java Application. For the purposes of this article, I will be u…
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…
This tutorial explains how to use the VisualVM tool for the Java platform application. This video goes into detail on the Threads, Sampler, and Profiler tabs.

756 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question